Numerical attoclock on atomic and molecular hydrogen

Vladislav V. Serov; Alexander W. Bray; Anatoli S. Kheifets

doi:10.1103/PhysRevA.99.063428

Numerical attoclock on atomic and molecular hydrogen

Vladislav V. Serov, Alexander W. Bray, Anatoli S. Kheifets

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

Numerical attoclock is a theoretical model of attosecond angular streaking driven by a very short, nearly a single oscillation, circularly polarized laser pulse. The reading of such an attoclock is readily obtained from a numerical solution of the time-dependent Schrödinger equation as well as a semiclassical trajectory simulation. By comparing the two approaches, we highlight the essential physics behind the attoclock measurements. In addition, we analyze the predictions of the Keldysh-Rutherford model of the attoclock [A. W. Bray, Phys. Rev. Lett. 121, 123201 (2018)10.1103/PhysRevLett.121.123201]. In molecular hydrogen, we highlight a strong dependence of the width of the attoclock angular peak on the molecular orientation and attribute it to the two-center electron interference. This effect is further exemplified in the weakly bound neon dimer.

Original language	English
Article number	063428
Journal	Physical Review A
Volume	99
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.99.063428
Publication status	Published - 27 Jun 2019

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Numerical attoclock on atomic and molecular hydrogen

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